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Influence of impact velocity and angle in a detailed reconstruction of a bicycle accident
KTH, School of Technology and Health (STH), Neuronic Engineering.ORCID iD: 0000-0002-0980-4051
Mechanical Engineering Department, Biomechanics Section, Katholieke Universiteit Leuven, Belgium.
KTH, School of Technology and Health (STH), Neuronic Engineering.
Mechanical Engineering Department, Biomechanics Section, Katholieke Universiteit Leuven, Belgium.
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2012 (English)In: 2012 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury, 2012, 787-799 p.Conference paper, Published paper (Refereed)
Abstract [en]

Bicycle accidents have become the most common cause of serious injury in the traffic during the last couple of years in Sweden. The objective of this study was to investigate the effect of the input variables, initial velocity and head orientation, of a bicycle accident reconstruction on the strain levels in the brain using a detailed FE head model. The accident involved a non-helmeted 68 year old male who sustained a linear skull fracture, contusions, acute subdural hematoma, and small bleeding at the swelling (subarachnoid blood). The orientation of the head just before impact was determined from the swelling appearing in the computer tomography (CT) scans. The head model used in this study was developed at the Royal Institute of Technology in Stockholm. The stress in the cranial bone, first principal strain in the brain tissue and acceleration were determined. The model was able to predict a strain pattern that correlated well with the medical images from the victim. The variation study showed that the tangential velocity had a large effect on the strain levels in the studied case. The strain pattern indicated larger areas of high strain with increased tangential velocity especially at the more superior sections.

Place, publisher, year, edition, pages
2012. 787-799 p.
Keyword [en]
Accident reconstruction, bicycle, finite element method, head injuries
National Category
Other Medical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-102669Scopus ID: 2-s2.0-84867806202OAI: oai:DiVA.org:kth-102669DiVA: diva2:555656
Conference
International Research Council on the Biomechanics of Injury Conference, IRCOBI 2012; Dublin; 12 September 2012 through 14 September 2012
Note

QC 20121205

Available from: 2012-09-21 Created: 2012-09-21 Last updated: 2013-10-04Bibliographically approved

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Fahlstedt, MadelenKleiven, Svein

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